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Professional Automotive Repair Technical Discussions for December 31, 2007 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1996 Buick Century Custom 3.1L door locks VIN: 1G4AG55M02 Customer calls complaining of the door locks automatically locking and unlocking while driving vehicle. She has had a problem with the battery discharging when the car sits for a few days. Charging system OK. Replaced battery. Any TSB's out there on this? |
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| 2000 Buick Regal LS 3.8L all VIN: 2G4WB52K5Y This vehicle runs fine until you turn on either left or right directional, then engine stalls,8 out of 10 times,. but turn the key and it restarts.It will also stall if you place trans in neutral,than turn on the directional. |
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| 1991 Chevrolet C2500 Cheyenne 5.7L Speedometer VIN: 2GCGC29K7M I changed my rear axle ratio and I am having trouble finding a re-calibration plug to remove the old calibration from my instrument panel,this year has the DRAC built in the IP.I have all the documentation to reprogram to the new ratio but I need to know which... |
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| 1995 Chevrolet P30 6.5L Leaks VIN: 1GBKP32Y2S There Is An "Adapter" Fitting In between the #1 Port Of The Injector Pump & The #1 Injector Line. It Looks As If Though There Was A Wire Or Something Coming Out Of It @ one time. Where The Fitting Is "Seamed", There Is A leak That I Can't Stop. Since The fitt... |
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| 1997 Chevrolet C1500 4.3L Misfire VIN: 1GCEC14W8W Only cylinder #1 is showing any misfires. we did a motorvac, no difference. Current ramp on #1 injector shows max amperage @1.03 amps. smooth wave form and a little flat spot 991us into the pattern. total duration 3.4ms and time at max amps abt 2.0ms. tried to... Trouble codes: P0300 (multiple cylinder misfire) |
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| 1999 Chevrolet Express 3500 5.7L No Start VIN: 1GCHG35R4X This vehicle came in two weeks ago - was driven to shop. started and drove normally on road test. security light was not on. after scanning pcm and finding p1631 i called driver to ask about security light. he said it comes on "sometimes". I tested battery and... Trouble codes: P1631 (theft system - password incorrect), P0463 (fuel level sensor circuit high or open) |
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| 2001 GMC Safari SL 4.3L Poor Idle Quality, high ilde VIN: 1GKPM19W71 Customer complaint: On highway, set cruise and when disengaged or decellerating, idle sticks too high (goes about 40 km/h without depressing accelerator). Engine light came on, and when re-started next morning still on but now out. Normally kick acclerattor a... |
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| 1994 Pontiac Bonneville SSE 3.8L Hesitation, Surge VIN: 1G2HZ5213R hello, we have been pulling hair. car came in with p0341, found shorted cam sensor. replaced cam and crank sensor, no codes pressent, tcc shudder still present. replace ecm. problem better short term only. car is back severe tcc shudder feel and miss on acc.ha... |
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| 2001 Pontiac Grand Am SE 3.4L Poor Idle Quality VIN: 1G2NF52E81 This car had the intake gasket replaced. Run fine for a month than started to idle high 1300 rpm. Check for vacuum leaks none found. Scanner check computer found the VCM is requesting a desired idle of 1296 rpms. No codes tps reads 0% .55v at idle, iac 155 key... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2000 Chevrolet Venture 3.4L No Start VIN: 1GNDX03E6Y Hey Everyone, The fix ended up being getting the second key from the customer, inserting it in the ignition and turning it. The new PCM would not accept a relearn until both keys were used. It does not say this in TIS2000, the new PCM manufacturers re... |
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| 2002 Chevrolet Suburban 1500 LS 5.3L Automatic Level Control VIN: 3GNFK16Z62 Sorry for taking so long but customer has not returned. I have Mitchell and some have sent me the same info that I have. Others have sent me suggestions to look for but since customer will not return my call, not much more I can do. Again, thanks for your hel... |
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| 2002 Chevrolet Impala 3.4L starter VIN: 2G1WF52E22 I WENT BACK TO THE DEALER AND GOT ANOTHER PASSLOCK//TUMBLER AND IT RELEARNED THE FIRST TIME SO I GUESS I GOT A BAD PART// I SHOULD HAVE INSTALLED THE OLD ONE FRIDAY AND RELEARNED THAT ONE INSTEAD OF JUST INSTALLING IT AND NOTHING HAPPENED/// THANKS FOR ALL YO... |
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| 2003 Chevrolet Express 3500 LS 6.0L instrument cluster VIN: 1GAHG39U13 Thank you to everyone who replied with help. I was going to pull cluster out, but decided to check all grounds again. I cleaned all grounds and made sure they were tight. After doing this the cluster has not "dropped out". Vehicle has been back in service for ... |
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| 2004 Chevrolet Impala SS 3.8L dash reset VIN: 2G1WP55124 Well I had to send this one to the dealer. The replies mostly said to check for power loss to dash and there was no loss so I replaced the electrical part of the key with no luck. The resetting was not wiggle related and did not happen on bumps. seemed like a ... |
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| 2005 Chevrolet Malibu LS 3.5L ignition system VIN: 1G1ZT52815 I tried every suggestion that was received. Unfortunately nothing worked. The owner decided to take another route. Thanks to all that sent in the suggestions I was going in the same direction. |
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| 1998 Pontiac Bonneville SE 3.8L temp control unit? VIN: 1G2HX52K1W Sorry about the delay in response and thank you to the people that sent information and ideas. I ended up un-plugging the in-car temp. sensor and vehicle blew good hot air. The customer declined any further diag or repairs, he was just happy to have heat again... |
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